Monitoring is implemented in real time (update every 30 sec) based on IAC PNT tracking station located in Korolev, Moscow region (55.9° N 37.8° E)

The method used to identify failures in the GLONASS SVs operation is based on the URE (User Range Error) estimation –user positioning errors by space segment including environmental errors.
Corrections for the ionosphere impact are calculated by the Klobuchar model, and for the troposphere impact – by the standard Saastamoinen model.